Abstract: A door arrangement includes a door leaf movable relative to a frame. A locking device in a locked state locks the door leaf to the frame by at least one locking element and in an unlocked state releases the door leaf relative to the frame. An actuating element selects the state of the locking device. To transmit a movement of the actuating element, the locking device has a connecting bar which is arranged displaceably on the door leaf, wherein a motor-operated drive unit for driving the connecting bar is provided. A sensor device for the contactless detection of a movement of the connecting bar is provided and the motor-operated drive unit can be activated in accordance with a movement of the connecting bar detected by the sensor device.

Abstract: The invention relates to a sliding-door assembly, including a stationary frame, a horizontally movable door leaf, and a drive device for moving the door leaf, which drive device includes a drive motor, which is arranged on the leaf and has a toothed wheel, which interacts with a toothed belt arranged on the frame, wherein the toothed belt is wrapped around the toothed wheel over a partial periphery of the toothed wheel and wherein at least two teeth of the toothed wheel are simultaneously fully engaged with at least two teeth of the toothed belt.

Abstract: A pivot-tilt mechanism for a window or a door comprises a transmission (32), groove bands and locks (74, 92). The pivot-tilt mechanism has a pivot fixture (22) and a tilt fixture (24) and the transmission is formed of two parts and comprises a drive (18) for the pivot fixture (22) and a drive (20) for the tilt fixture (24). The pivot fixture (22) and the tilt fixture (24) are driven one after the other.

Abstract: In a locking device for a door, window or the like, having a main lock box, at least one supplementary lock box, and at least one drive rod connecting the supplementary lock boxes to the main lock box, better resistance to break-ins is attained in that the supplementary lock box has a latch bolt that can be retracted freely into the latching position, wherein the latch bolt is displaceable by a spring and/or by a gear past the normal latching position into its locking position.

Abstract: A locking device for a door, window, or the like, has a main lock casing, at least one additional lock casing and at least one pushrod connecting the additional lock casing with the main lock casing. The additional lock casing has a retractable latch bolt, which can be freely pushed out of the latch position into the additional lock casing, which can be pushed into its locking position by means of a spring and/or a gear. The latch bolt on its side located opposite a leading incline and in the area of the latch end has a protrusion, on which a latch restoring lever acts, and the latch restoring lever has a first catch, by means of which a pushrod is taken along in the, and; one direction, a second catch, by means of which it is taken along by the pushrod in the other.

Abstract: The invention concerns a rotational tilt-armature for a window, a door or the like comprising a transmission (32), groove bands and locks (74, 92). The rotational tilt armature has a rotational armature (22) and a tilt armature (24) and the transmission is formed of two parts and comprises a drive (18) for the rotational armature (22) and a drive (20) for the tilt armature (24). The rotational armature (22) and the tilt armature (24) can be driven one after the other.

Abstract: A lock for a door including a latch bolt and a further bolt mounted in a housing for parallel displacement relative to the housing. A bearing is fixed in place in the housing and along with a turning element and a two-armed hinged lever, also mounted to the housing operate on the latch bolt and the further bolt. The two arms of the two-armed hinged lever are pivotably connected with each other at their free ends with one of the arms receiving the fixed bearing between its ends, and with one of the arms being connected to the turning element and the other of its arms being connected to the further bolt.

Abstract: A lock for a door has a housing with an opening, a latch bolt and a further latch bolt both mounted to the housing for parallel displacement relative to the housing. A latch follower formed as part of a latch is connected to the latch bolt as is a changer, with the parallel displacement occurring due to the action of one of the latch follower via the latch and the changer via a key. A lock cylinder is situated in the housing opening. Two drive rods and associated control plates are provided along and a changer lever hinged to one of the control plates and connected to the lock cylinder. The lock cylinder can drive the changer via the changer lever and its hinged control plate. One side of the lock has, therefore, two drive rods.

Abstract: An arrangement for controlling the closing sequence of two wings of windows, doors, and the like, especially smoke or fire protection doors, which are closable by means of a door-closing device each. The two wings are a moving wing to be opened first and a resting wing to be opened subsequently, so that projecting edges of the doors which face each other come into contact with each other in the correct sequence. A control device is actuated primarily by the slide rollers of the door-closing device of the resting wing when the resting wing is opened. With the use of a control lever and a sliding member displaced by the control lever toward the axis of rotation of the resting lever, a locking member is pivoted into the return end region of the guide roller of the door-closing device of the moving wing. This locking member locks the final closing movement of the moving wing until the resting wing has been closed.

Abstract: A panel assembly for a door or window including a generally quadrilateral frame member having a panel member operatively connected therewith for movement between a closed position and opened positions wherein the frame member is either tilted about one edge thereof or moved laterally offset parallel to itself. Latch means provided between the panel member and the quadrilateral frame include at least one releasing arm and an angular housing, with the angular housing being connected at a corner of the panel member with two adjacent members thereof and with the releasing arm having a panel-side end at which the releasing arm is connected with the angular housing.

Abstract: A closure panel assembly including a frame member and a panel member adapted to be tilted relative to the frame member and also laterally offset relative thereto by movement parallel to itself is equipped with a panel latching mechanism which includes a locking member engaging between the panel member and the frame member to lock the lower end of the panel member relative to the frame member when the panel member is to be moved to its tilted position while enabling release of the lower end of the panel member when the panel member is to be parallel laterally offset.

Abstract: A room ventilator structured to define therethrough both a primary airstream and a secondary airstream arranged in heat exchange relationship with each other. A heat exchanger located to have both said primary and secondary airstreams flow therethrough is structured to divide both of said streams into numerous smaller partial airstreams with walls made of high thermal conductivity intermediate the partial airstreams to enhance the heat exchange capacity between the streams. The heat exchanger is designed so that it may be installed in the ventilator in a plurality of reversed positions without impairing its function.

Abstract: A sash is mounted in a first position in a fixed frame and is movable laterally into a second position where it is parallel to the first position. A plurality of swing arms connect the sash to a movable carriage so that in the second position the sash can be moved along a linear path between a closed position and open position relative to the first position of the sash in the fixed frame. At least one of the swing arms has a control arm pivotally attached to it. The control arm has a locking member engageable within and movable along a slot in the carriage. The locking member can be secured within a section of the slot angularly offset from the main section of the slot when the sash is in the second position. With the locking member secured in the angularly offset section, the sash is retained in the second position. A lug secured to the fixed frame is located in the path of the carriage as the sash moves along the linear path toward the closed position.

Abstract: A mounting is disclosed for the movable member of a window or door in a fixed frame which comprises four set-off arms connected to corners of the movable member. Each set-off arm is pivoted and slidably mounted to the movable member at one end thereof and pivotally mounted to the frame in an opposite end thereof. An auxiliary arm is pivotally mounted to the set-off arm at an intermediate location thereon and also to the movable member. The set-off arms take up opposite mirror image inclined positions with the movable member in its closed and opened position respectively. The upper set-off arms are mirror images of the lower set-off arms about a plane perpendicular to the plane of the movable member with the pivotal and sliding engagement between upper and lower set-off arms being closer to each other than the pivotal engagement between those set-off arms and their associated auxiliary arms.

Abstract: A control device is disclosed for selectively displacing two drive rod drivers which are coupled to drive rods of a window or door. The device includes a housing having a guide path defined therein for slidably receiving two drivers. The handle includes a turning member which is directly engaged with one driver and the device includes a clutch which is selectively engageable or disengageable between the two drivers so that, with rotation of the handle member, either both or one of the drivers may be moved along the guide path in the housing.

Abstract: To avoid or at least substantially reduce heat losses occurring with conventional registers ventilation, a register is disclosed which is assembled of two basic bodies supporting each a shutter and connected to each other through a thermally insulating layer. Preferably, the thermally insulating layer comprises insulating sectional strips and it is satisfactory to provide such strips only along the upper and lower longitudinal edges of the two basic bodies. The two shutters are coupled to each other so that they can be shifted conjointly from their closing to their open position and vice versa by means of a single drive mechanism.

Abstract: A ventilating device for mounting on a wall or support frame which has an air flow passage therethrough comprises a housing of generally rectangular or block shaped form. The housing has a back wall which is mounted on brackets secured to the mounting wall and which includes an air inlet aligned with the air passage defined through the mounting wall. An insulation layer is secured to the top and bottom walls of the housing and to the cover. When the cover is closed the cover layer insulation fits between the top and bottom layers and the three layers define a tortuous or meandering flow path for the air from the inlet to the outlet which is defined at the front end of the housing opposite to the rear wall. The outlet is closed by the cover which has an adjustable register and the apparatus advantageously includes a fan arranged to draw air in through the inlet and circulate it through the tortuous path between the insulations to the outlet for flow out through the register.